同步请求，async（是否异步）
//同步请求，等待并接收返回的结果
var result = $.ajax({ type: "GET", url: address, async: false }).responseText;
//同步验证 验证码是否正确
var msg = $.ajax({ type: "POST", url: "/IsVerifyCode.html?", data: "verifyCode=1978", async: false }).responseText;
if (msg == "false") {
$.jBox.tip("验证码有误");
$("input[name='_member.VerifyCode']").focus();
return false;
}
var regMobile = /^(13|14|15|18)\d{9}$/;
if (!regMobile.test(msg)) {
$.jBox.tip("请输入您的手机请输入有效的手机号码号码");
return false;
}
数据地址：http://cy.com/Json_cross_domain/Handler1.ashx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Newtonsoft.Json; /// <summary>
/// Handler1 的摘要说明
/// </summary>
public class Handler1 : IHttpHandler
{ public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string jsoncall = context.Request["jsoncallback"];
Users u = new Users();
u.Name = "招运堂";
u.Phone = "";
u.Email = "zhaoyuntang@126.com";
//JavaScriptConvert.SerializeObject(s_result);
string json = JsonConvert.SerializeObject(u);
context.Response.Write(jsoncall + "(" + json + ")");
}
public class Users
{
public string Name { get; set; }
public string Phone { get; set; }
public string Email { get; set; }
}
public bool IsReusable
{
get
{
return false;
}
} }
跨域请求，返回Json结果
<script src="http://cy.com/Scripts/jquery-1.8.3.min.js" type="text/javascript"></script>
<script type="text/javascript">
function getdata() {
//数据地址
var url = "http://cy.com/Json_cross_domain/Handler1.ashx?u=1&jsoncallback=?&id=" + Math.random();
$.ajax({
type: 'get',
url: url,
dataType: "json",
success: function (data) {
var s = data.Name;
alert(s);
},
complete: function (XMLHttpRequest, textStatus) {
kaiguan = true;
},
error: function () {
alert("抱歉，服务器遇到问题！");
}
});
}
$.ajax({
//提交数据的类型 POST GET
type: "GET",
//提交的网址
url: "/AppQuestion/SetAnswerAppQuestion/",
//提交的数据
data: { qid: qid, c: c },
//返回数据的格式
datatype: "html", //"xml", "html", "script", "json", "jsonp", "text".
//在请求之前调用的函数
beforeSend: function () { $.jBox.tip("正在发送请求...", 'loading'); },
//成功返回之后调用的函数
success: function (data) {
var t = data.indexOf('ok');
if (t >= 0) {
$.jBox.tip("提交成功", 'success');
$("#idTrshowWrite").show();
$("#idTrtoSubmit").hide();
$("#textarea_contents").value = "";
}
else
$.jBox.tip("操作失败【" + msg + "】", 'error');
},
//调用执行后调用的函数
complete: function (XMLHttpRequest, textStatus) {
alert(XMLHttpRequest.responseText);
alert(textStatus);
//HideLoading();
},
//调用出错执行的函数
error: function () {
//请求出错处理
}
});